| /* |
| * Copyright 2014, The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.telecom; |
| |
| import android.telecom.TelecomProtoEnums; |
| |
| /** |
| * Defines call-state constants of the different states in which a call can exist. Although states |
| * have the notion of normal transitions, due to the volatile nature of telephony systems, code |
| * that uses these states should be resilient to unexpected state changes outside of what is |
| * considered traditional. |
| */ |
| public final class CallState { |
| |
| private CallState() {} |
| |
| /** |
| * Indicates that a call is new and not connected. This is used as the default state internally |
| * within Telecom and should not be used between Telecom and call services. Call services are |
| * not expected to ever interact with NEW calls, but {@link android.telecom.InCallService}s will |
| * see calls in this state. |
| */ |
| public static final int NEW = TelecomProtoEnums.NEW; // = 0 |
| |
| /** |
| * The initial state of an outgoing {@code Call}. |
| * Common transitions are to {@link #DIALING} state for a successful call or |
| * {@link #DISCONNECTED} if it failed. |
| */ |
| public static final int CONNECTING = TelecomProtoEnums.CONNECTING; // = 1 |
| |
| /** |
| * The state of an outgoing {@code Call} when waiting on user to select a |
| * {@link android.telecom.PhoneAccount} through which to place the call. |
| */ |
| public static final int SELECT_PHONE_ACCOUNT = TelecomProtoEnums.SELECT_PHONE_ACCOUNT; // = 2 |
| |
| /** |
| * Indicates that a call is outgoing and in the dialing state. A call transitions to this state |
| * once an outgoing call has begun (e.g., user presses the dial button in Dialer). Calls in this |
| * state usually transition to {@link #ACTIVE} if the call was answered or {@link #DISCONNECTED} |
| * if the call was disconnected somehow (e.g., failure or cancellation of the call by the user). |
| */ |
| public static final int DIALING = TelecomProtoEnums.DIALING; // = 3 |
| |
| /** |
| * Indicates that a call is incoming and the user still has the option of answering, rejecting, |
| * or doing nothing with the call. This state is usually associated with some type of audible |
| * ringtone. Normal transitions are to {@link #ACTIVE} if answered or {@link #DISCONNECTED} |
| * otherwise. |
| */ |
| public static final int RINGING = TelecomProtoEnums.RINGING; // = 4 |
| |
| /** |
| * Indicates that a call is currently connected to another party and a communication channel is |
| * open between them. The normal transition to this state is by the user answering a |
| * {@link #DIALING} call or a {@link #RINGING} call being answered by the other party. |
| */ |
| public static final int ACTIVE = TelecomProtoEnums.ACTIVE; // = 5 |
| |
| /** |
| * Indicates that the call is currently on hold. In this state, the call is not terminated |
| * but no communication is allowed until the call is no longer on hold. The typical transition |
| * to this state is by the user putting an {@link #ACTIVE} call on hold by explicitly performing |
| * an action, such as clicking the hold button. |
| */ |
| public static final int ON_HOLD = TelecomProtoEnums.ON_HOLD; // = 6 |
| |
| /** |
| * Indicates that a call is currently disconnected. All states can transition to this state |
| * by the call service giving notice that the connection has been severed. When the user |
| * explicitly ends a call, it will not transition to this state until the call service confirms |
| * the disconnection or communication was lost to the call service currently responsible for |
| * this call (e.g., call service crashes). |
| */ |
| public static final int DISCONNECTED = TelecomProtoEnums.DISCONNECTED; // = 7 |
| |
| /** |
| * Indicates that the call was attempted (mostly in the context of outgoing, at least at the |
| * time of writing) but cancelled before it was successfully connected. |
| */ |
| public static final int ABORTED = TelecomProtoEnums.ABORTED; // = 8 |
| |
| /** |
| * Indicates that the call is in the process of being disconnected and will transition next |
| * to a {@link #DISCONNECTED} state. |
| * <p> |
| * This state is not expected to be communicated from the Telephony layer, but will be reported |
| * to the InCall UI for calls where disconnection has been initiated by the user but the |
| * ConnectionService has confirmed the call as disconnected. |
| */ |
| public static final int DISCONNECTING = TelecomProtoEnums.DISCONNECTING; // = 9 |
| |
| /** |
| * Indicates that the call is in the process of being pulled to the local device. |
| * <p> |
| * This state should only be set on a call with |
| * {@link android.telecom.Connection#PROPERTY_IS_EXTERNAL_CALL} and |
| * {@link android.telecom.Connection#CAPABILITY_CAN_PULL_CALL}. |
| */ |
| public static final int PULLING = TelecomProtoEnums.PULLING; // = 10 |
| |
| /** |
| * Indicates that an incoming call has been answered by the in-call UI, but Telephony hasn't yet |
| * set the call to active. |
| */ |
| public static final int ANSWERED = 11; |
| |
| public static String toString(int callState) { |
| switch (callState) { |
| case NEW: |
| return "NEW"; |
| case CONNECTING: |
| return "CONNECTING"; |
| case SELECT_PHONE_ACCOUNT: |
| return "SELECT_PHONE_ACCOUNT"; |
| case DIALING: |
| return "DIALING"; |
| case RINGING: |
| return "RINGING"; |
| case ACTIVE: |
| return "ACTIVE"; |
| case ON_HOLD: |
| return "ON_HOLD"; |
| case DISCONNECTED: |
| return "DISCONNECTED"; |
| case ABORTED: |
| return "ABORTED"; |
| case DISCONNECTING: |
| return "DISCONNECTING"; |
| case PULLING: |
| return "PULLING"; |
| case ANSWERED: |
| return "ANSWERED"; |
| default: |
| return "UNKNOWN"; |
| } |
| } |
| } |
